Process for making rubber bindings for floor coverings and the means for carrying out said process



Oct. 12,1926. I I 1,603,142

. E. F. MURRAY PROCESS FOR MAKING RUBBER BINDINGS FOR FLOOR COVERINGS AND THE MEANS FOR CARRYING OUT SAID PROCESS Filed March 21 1925 2 Sheets-Sheet 1 N III I N III IMI HII U .IIIIIII. a

avwuuoz E. F. MURRAY PROCESS FOR MAKING RUBBER-BINDINGS AND THE MEANS FOR CARRYING OUT SAID PR Oct. 12

Filed March 21 I Patented Oct. 12, 1926.

UNITED. 51' O ICE :anwann r. mums, or new Yonx,

- co., or New 'Yonx, 2.. A

rnocnss iron maizme nuannnnmnme's ron. H.001:

N. -Y., assrenon T Knarr conronarron or NEW Yoax. covnames AND ran imans FOR. GABRYIN G OUT SAID PROCESS.

Applieation mam h 21, 11925. Serial 11'0. 17,259.

My invention relates to an improvement in a processfor'making rubber. bindings for floor coverings and the machine for carry: 'ing out said in the steps and in the arrangement and ads tation of the parts for carrying out sai process.

In order to properl floorcQVeI-ingsand t e 1 used on'stairways which protect the edges. of edges of coverings are exposed on theedge of-the treads it has been the practice for many years to use afrubber binding or nosing, which is. especially adapted. for and made for these purposes. 19 These bi dings and therein, in order to ful ll their'function properly and the method'of making these, which has been in use for many ears, has been to'take a strip of green rub er which has been calendered on fabric and foldin the same and putting a rubber core insai fold, placing long strips of said mater al in molds and applying hydraulic pressure which will mold onlyfthe-length of. strip governed by the-'Iengthof the entails the use of. a largeamount of labor in the handling of these molds "and after the strips are compressed in said" molds a lar e quantity of steam is then used in jac ets over said molds to .efiect a curin of the rubber. The molds are then opens and the strips so formedare trimmed of the excess material, the same as. is necessary all mold practice.

My recess and device is adapted to elim-. inate t e use of molds and the large amount of labor in handling the same, as well as "eliminating the necessity for trimming the strips after molded and enables the operatorpto make said strips in a continuous mannen cutting' ,them 01f in the desired lengths and doing the curing in v batch lots so as to save time and heat.

In the drawin of my complete device showing the strips running through the machine. a cross section on the line 2-2 Figure 3 is a cross section on p of Figure 1. Figure 4 is a top plan View of a strip of green rubber caendered on a fabric adapted for use in carrying out my process. Figure 5 is a cross section of Figure 4. Figure 6 is a top 'plan view of tion of Figure 6., process and the novelty lies Figure 9 ,is across section of nosingshave be madewith certain OOI'lllfifliSlOIlS or designs mold. This 25 respectively guideway 27 is p 26. An arbor member s Figure 1 is a perspectivethe base member Figure'2 is the line 33 Th jthe strip it Figure 4 it has through my device. Figure 7 is a, cross sec- .FigureB is a top lan view' of a folded strip of v ca'lendered on a fabric with a rubber core adapted for use 'in carrying out m process.

RUBBER BINDING green. ru her I.

at igure 8.

Figure 10 is a top plan view of strip shown,

in Figure '8 after it has run through .my device. Figure 11 is a cross section of Figure 10. Figure 12 isa' top, plan view of a nosing strip hav' run through my device and been cured. Figure 13 is a cross section of Figure'12.

Referring frame member having fastening means 16 adapted for securing it rigidly to a table orbench in which is] mounted a driving shaft 17 driven by pulley 18 and belt 19, driven from a source of power not shown. A roller 20 is mounted on said drivin shaft 17 and a cut ear 21 "is rigidly secured to the opposite emf of the drivin shaft 17 from the pulley 18. 'A driven s aft 22 is also mount-edin the frame 15011 which is mounted a roller' 25, rigidlymounted onthe shaft 22 so as to frame as to control the pressureor space shaft 22 and therefore the rollers 20 and mounted thereon. A guideway 26 is cut in the frame .15 and a second 28. is secured over saidrguideways being fastened-to the frame 15 at 29. The ideway 26 has a base or guidemounted therein and exten ing a 'substaT1- tial distance be ond the. frame 15 on the furtherside of th e same asshown in Figure l so as to serve for material being fed. through the. guidev 31' is rigidly mounted in' said guidewag {26 parallel to .30. an approximately one-half way between 'saidfbase member and the upper portion of the g'uideway- 26. e 'guideway 27 has a base member 32 rigidly mounted therein and extending a substantial distance beyond the further side and a cut 'gear'23 is between the-driving shaft 17 and the driven sfi also cut therein and a plate late 30 rigidly of the frame 15 as shown .in' Figure 1 so as to serve as a runway 'for material fed' through said guideway. The roller 25 has as V as abase or guide member material run thereunder.

circular cut outs 33 adapted to imprint the desired design upon the material rolled in under said roller. Thesecond series of circular cut out members'34 is also made on the roller 25 to effect another design on the A circular cut out member 35 is'made'on the roller to effect the desired design on the lower side of the material run between the rollers 25. In' carry ng out my process a strip of green rubber 36 which has been calendered fold, and

. the lengths through the tween the 1'01 ers 20and 25 which are ro-- onto aback fabric 37 is adapted to be run uideway 27 and passing betat-ing' through the driving of the pulley 18 and shaft 17, which motion is transferred through gears 21 and 23, will effect the making 0 desired ridges 38 on the face of said green rubber 36. In Figure 9 as shown in cross section a folded strip having a back fabric 37 and a green rubber coating 36 which has been calender-ed thereon and a rubber core 39 which has been mounted in the as this folded strip is placed in the guideway two sides of said folded strip and my machine started into operation as before described, said two faces 36 of green rubber will be imprinted bythe cut outs 36 and 35 so as to form the desired design of ridges 38 thereon. As these strips of imprinted rubber are run through my' device and imprint- 26 with the arbor 31 between the space between a curved position as shown in Figures 12 and 13.

Many variations may be made in the par 'ticular form, of device used without departing from the spirit ofmy invention.

I claim:-

, a r 1. The process of making-rubber bindings for ,fioor coverings comprising the placing of a rubber core in the fold of a folded strip ning saidstrip through rollers so as -toform simultaneously the particular design required upon the outside of each half of said .strip, cutting said strip in the lengths-desired and curing the'same in batch lots in the usual manner. 7

2. The process of making rubberbindings for floor coverings-comprisingthe continuous imprinting of the desired design upon a strip of green rubber calendered on fabric between rollers while holding said strip in a guideway, cutting said strip in the-lengths desired and curing the same in batch lots in the well known manner. I

3. In amachine adapted to form a rubber'binding for floor covers, a frame member, a driving roller and a driven roller supported in said frame, design forming elements on each of said rollers, means for controlling the space between said rollers, a guideway between said rollers and' an arbor rigidly mounted in said guideway.

4. In a machine adapted to form a rubber binding for floor coverlngs, a frame member, a driving roller and a driven roller supported therein, a design forming element on-said driven roller, means for controlling the said rollers and a guideway for holding said strip between said rollers.

In testimony whereof Iafiix my signature EDWARD F. MURRAY.

Y of green rubber calendered on fabric, run- 

